Lighting Controls
Light-Activated Programmable Timer (8 Pins)
LS7217-S, LS7217
The LS7217 is a programmable Timer IC designed to turn on a relay at night and turn off the relay at dawn or after a selectable number of hours. Dusk-to-Dawn duration is determined solely by the photo-cell; i.e., the Relay input is on whenever the photocell…
AC Motor Multi-Speed Controller (16 Pins)
LS7315-SW, LS7315
The LS7314 – LS7315 are MOS integrated circuits specifically designed for appliance motor speed control, lighting control, etc. I/Os (PLs) are provided for selecting/indicating from one to ten power levels. The LS7315 is designed for pushbutton control. The LS7314 is…
AGC Touch Control Step Dimmer (8 Pins)
LS7538-S, LS7538, LS7539-S, LS7539
The LS7538 and LS7539 are CMOS integrated circuits which provide trigger pulses for triac phase control of incandescent lamps. The circuits are designed to operate with a wide variety of lamp sizes rangin from small table lamps to large floor lamps. The AGC loop…
AGC Touch Control Light Switch with Soft-Off (8 Pins)
LS7540-S, LS7540
The LS7540 is a CMOS integrated circuit for controlling the brightness of incandescent lamps with momentary touch. When its TOUCH input is connected to a lamp body, the entire lamp turns into a touch plate. A built-in AGC circuit allows for a wide range of…
AGC Touch Control Step Dimmer (8 Pins)
LS7541-S, LS7541
The LS7538 and LS7539 are CMOS integrated circuits which provide trigger pulses for triac phase control of incandescent lamps. The circuits are designed to operate with a wide variety of lamp sizes ranging from small table lamps to large floor lamps. The AGC loop…
Touch Control Halogen Light Dimmer (8 Pins)
LS7631-S, LS7631, LS7632-S, LS7632
A typical electronic dimmer may not operate properly with the inductive load encountered when driving a magnetic transformer-coupled low voltage halogen lamp. The inductive load can cause a phenomenon called half-waving, wherein the triac fires in alternate…
Touch Control Halogen Light Dimmer (8 Pins)
LS7634-S, LS7634, LS7634FO-S, LS7634FO, LS7635-S, LS7635, LS7635FO-S, LS7635FO
A typical electronic dimmer may not operate properly with the inductive load encountered when driving a transformer-coupled low voltage halogen lamp. The inductive load can cause a phenomenon called half-waving, wherein the triac fires in alternate half-cycles…
Reverse-Phase (Trailing Edge) Halogen Light Dimmer (8 Pins)
LS7636-S, LS7636, LS7636FO-S, LS7636FO, LS7637-S, LS7637, LS7637FO-S, LS7637FO
Since the operating currents of some electronic transformers are below the holding current of most triacs, a typical triac based (leading-edge) dimmer may not operate properly when driving an electronic transformer-coupled low-voltage halogen lamp. The filtering…
*New Product*
Reverse Phase (Trailing-Edge) Light Dimmer For LED Lamps (14 Pins)
LS7641-S, LS7641-TS, LS7641
LS7641 is a monolithic CMOS lamp dimmer designed for wall switch applications driving LED and incandescent lamps. It uses reverse phase dimming technology wherein the brightness of a lamp is controlled by controlling the duty cycle of the on state by varying the turn-off angle of a MOSFET driving the lamp during ac half cycles. This is in contrast with triac dimming technology wherein the duty cycle is controlled by varying the turn-on angle.
Voltage Control Light Dimmer with Soft On/Off (8 Pins)
LS7642-S, LS7642, LS7642FO-S, LS7642FO
The LS7642 is an innovative light dimmer allowing direct control of illumination with analog voltage. The analog voltage applied at the brightness control input directly controls the conduction angle of a triac in series with the lamp. For manual dimming applications…